3.5 Consider the microgrid of Figure 3.68. A three-phase 500 kVA, 440 V Y grounded/3.2 kV delta transformer T, with the per unit reactance of AC bus Local loads 250 kVA DC bus PV generating station DC/AC Inverter m Zyans Local power grid 3.2 kv T2 13.2 KV 440 V/3.2 kV 500 kVA 3.5% 3.2/13.2 kV 500 KVA, 8% Figure 3.68 A one-line diagram of Problem 3.5. PROBLEMS 173 3.5% feeds from an AC source of a PV generating station. The distribu- tion line is 10 miles long and has a series impedance of 0.01 + j0.09 2 per mile. The local load is 250 kVA. The balance of power can be injected into the local utility using a 500 kVA, 3.2 kV Y grounded/13.2 kV delta transformer T2 with the per unit reactance of 8%. Assume the voltage base of 13.8 kV on the local power grid side, kVA base of 500, and the DC bus voltage of 800 V. Compute the following: (i) The inverter and the PV generating station ratings. (ii) The per unit impedance diagram of the microgrid.

3.5 Consider the microgrid of Figure 3.68. A three-phase 500 kVA, 440 V Y grounded/3.2 kV delta transformer T, with the per unit reactance of AC bus Local loads 250 kVA DC bus PV generating station DC/AC Inverter m Zyans Local power grid 3.2 kv T2 13.2 KV 440 V/3.2 kV 500 kVA 3.5% 3.2/13.2 kV 500 KVA, 8% Figure 3.68 A one-line diagram of Problem 3.5. PROBLEMS 173 3.5% feeds from an AC source of a PV generating station. The distribu- tion line is 10 miles long and has a series impedance of 0.01 + j0.09 2 per mile. The local load is 250 kVA. The balance of power can be injected into the local utility using a 500 kVA, 3.2 kV Y grounded/13.2 kV delta transformer T2 with the per unit reactance of 8%. Assume the voltage base of 13.8 kV on the local power grid side, kVA base of 500, and the DC bus voltage of 800 V. Compute the following: (i) The inverter and the PV generating station ratings. (ii) The per unit impedance diagram of the microgrid.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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